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Communication Dans Un Congrès Année : 2021

Visibility analysis of glaciers on steep slopes in the european alps using TERRASAR-X/PAZ data

Résumé

This paper focuses on the visibility of glacier surfaces in the Mont Blanc Massif (Western European Alps) on TerraSAR-X/PAZ images and the identification of geometric distortions (GDs) based on the SAR acquisition geometry. Small glaciers which exist in complex topographies like steep slopes are most prone to GDs. We built a visibility map for both ascending/descending orbits by utilizing previously documented algorithms like the R-Index (RI) and the Layover Shadow (LS) simulations, combined with an analysis of the angle between the steepest slope direction (SSD) and line of sight (LOS) vectors. The visibility map allows us to identify glaciers on steeper slopes which should be considered for further analysis using TerraSAR-X/PAZ images.
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Dates et versions

hal-03260817 , version 1 (15-06-2021)

Identifiants

  • HAL Id : hal-03260817 , version 1

Citer

Suvrat Kaushik, Yajing Yan, Ludovic Ravanel, Florence Magnin, Emmanuel Trouvé. Visibility analysis of glaciers on steep slopes in the european alps using TERRASAR-X/PAZ data. International Geoscience and Remote Sensing Symposium, Jul 2021, Online, Belgium. pp.5505-5508. ⟨hal-03260817⟩
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